Focal Length : 400mm
Maximum Aperture : 2.8
Minimum aperture : 32
Lens Construction : 17 elements in 13 groups
Diagonal Angle of View : 6o 10'
Focus Adjustment : Inner focusing system with USM
Closest Focusing Distance : 3m / 9.8 ft.
Filter Size : 52mm Drop-In
Dimensions (D x L) : 163.0mm x 349.0mm (6.4" x 13.7")
Weight : 5370 g (11.8 lbs)

Lens Cap
Lens Dust Cap